21480977

Names of 21480977

• Cardinal: 21480977 can be written as Twenty-one million, four hundred eighty thousand, nine hundred seventy-seven.

Scientific notation

• Scientific notation: 2.1480977 × 10⁷

Factors of 21480977

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 3068718

Divisors of 21480977

• Number of divisors d(n): 4
• Complete list of divisors:
  1 7 3068711 21480977
• Sum of all divisors σ(n): 24549696
• Sum of proper divisors (its aliquot sum) s(n): 3068719
• 21480977 is a deficient number, because the sum of its proper divisors (3068719) is less than itself. Its deficiency is 18412258

Bases of 21480977

• Binary: 1010001111100011000010001₂
• Hexadecimal: 0x147C611
• Base-36: CSETT

Squares and roots of 21480977

• 21480977 squared (21480977²) is 461432372874529
• 21480977 cubed (21480977³) is 9912018188773181334833
• The square root of 21480977 is 4634.7574909589
• The cube root of 21480977 is 277.9828543849

Scales and comparisons

• 21,480,977 seconds is equal to 35 weeks, 3 days, 14 hours, 56 minutes, 17 seconds.
• To count from 1 to 21,480,977 would take you about twenty-two hours!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 21480977 cubic inches would be around 23.2 feet tall.

Recreational maths with 21480977

• 21480977 backwards is 77908412
• The number of decimal digits it has is: 8
• The sum of 21480977's digits is 38
• More coming soon!